Introduction
SONOTEC GmbH, based in Halle (Saale), Germany, specializes in ultrasonic measurement technology and manufactures transducers for railway inspection. These transducers are crucial for detecting flaws in rail systems to ensure the safety of passengers and freight.

Specifications
SONOTEC's transducers are designed to operate at various angles, typically between 35° and 70°, to detect defects such as cracks. They are compliant with DIN EN 12668-2 and DIN EN ISO 22232-2 standards, ensuring high durability and resistance to vibration and shock. The transducers are suitable for use with replacement shoes.

Testing Methods
The ultrasonic testing is conducted using both Pulse-Echo and SE modes, allowing for comprehensive flaw detection. This dual-mode testing increases the likelihood of identifying potential issues.

Applications
SONOTEC's transducers are used in various applications, including:

• Inspection Trolleys
• Hand-Operated Inspection Trolleys
• Measuring Vehicles

Examples of Customized Transducers
The document provides examples of customized transducers with different specifications:

• 4.00 MHz, -46 dB sensitivity, temperature range -30° to +50° C, Microdot Connector, Stainless Steel housing
• 2.00 MHz, -53 dB sensitivity, temperature range -20° to +50° C, Lemo 0 Series Connector, Brass housing
• 4x 2.25 MHz and 2x 5.00 MHz, -45 dB sensitivity, temperature range -20° to +50° C, 6x BNC Socket, Aluminium housing
• 4.00 MHz, -45 dB sensitivity, temperature range 0° to +60° C, Lemo 0 Series Connector, Stainless Steel housing

Conclusion
SONOTEC's ultrasonic transducers are integral to railway safety, offering robust and reliable solutions for flaw detection in rail systems worldwide.